Given the task definition and input, reply with output. In this task, you will be shown an incorrect English sentence. You need to generate a corrected form of the input sentence.

However , after I learned all sides happening in a company such as marketing , accounting , leadership , financial accounting , and business communication etc. . 

However , afterward I learned all sides of what happens in a company , such as marketing , accounting , leadership , financial accounting , business communication , etc . 